Abstract
Recently mixing technology is important to chemical engineering, food engineering, bio engineering and etc.. However, mechanism of emulsification has not been fully understood. In this study, breakup processes of oil droplets in water were visualized to clarify the emulsification mechanism using an emulsifying equipment with homogenizing mixer. The effect of flow generated by a rotating impeller on atomization was investigated. A PIV technique was used to evaluate the flow field around the homogenizing mixer. The experimental result showed that there were three different kinds of break up processes of oil droplets in the vicinity of the impeller. In addition, it was observed that the flow around the impeller was inclined in its rotating direction to the vertical axis.
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